Fishing-tool.



PATENTED MAY 10, 1904,

A. H. BRANDON.

FISHING TOOL. APPLICATION FILED 001s, 1903.

N0 MOD-BL.

lnventor- IOU/Leases.-

- ence being bad to the accompanying drawings,

UNITED STATES Patented May 10, 1904.

PATENT NO'FFICE,

FlSHlNG-TOOL- SPECIFICATION forming part of Letters Patent No. 759,416, dated May 10, 1904.

Application filed October 3, 1903- 'To all whom it may concern:

berville, in the county of Wood and State of Ohio, have'invented certain new and useful Improvements in-Fishing-Tools'; and I do hereby declare the following to be a full, clear,

. and exact description of the invention, such as'will enable others skilled in the art to which. it appertains to make and use the same, refer and to the figures of reference markedthereon, which form a part of this specification.

'Myinvention relates to improvements in fishing-tools or lower-valve spears for'use in connection with oil or other Wells in which the recovery of broken or, disabled valves is rendered extremely diflicult by reason of the depth of the wells. a

The object of my invention is to provide an improved tool of the class described that is simple and cheap in its construction and so formed as to adapt its lower end to enter the outletopening in the valve or other object to be withdrawn and securely engage the rim thereof on the upward movement of said tool.

While the essential and characteristic features of my invention are necessarily susceptible of modification, the preferred embodiment thereof is illustrated in the accompanying drawings, in which Figure 1 is a partly sectional longitudinal vertical elevation of my improved tool, shoW- ing the lower end thereof as passing through the aperture of a valve preparatory to engaging therewith. Fig. 2 is a longitudinal vertical elevation of a portion of the mandrel of my invention, showing its lower end in engagement with a valve; and Fig. 3 is a similar view thereof, showing the wedge extended in normal position.

Referring to Fig. 1 of the drawings, 1 and 2 represent the pipe-casing and valve, respectively, of an ordinary oil-well, the said valve having a ball 3 seated therein and an aperture 3 in its upper part to permit of the passage of fluid therethrough. These valves frequently break or become impaired by reason of theaccumulation of sand or other particles around the seats thereof, thereby neces- SerialNo.1 75,565. (No model.)

sitating their removal from the wells, which is very difficult owing to the great depth at which they are located.

the elongated longitudinally-disposed,slot 5, whichis adapted to receive the elongated expanding-tongue 6, therein. retained and permitted to have a limited longitudinal movement within said slot v5 by means of the retainingnns 7, which are se- The tongue 6 is cured in transversely-disposed apertures provided in the bifurcated portions of said mandrel and pass loosely through an elongated slot 8, provided in the portion of said tongue inclosed within said slot 5. The lower end of the tongue 6, which normally extends below the end of said mandrel, is wedge-shaped to adapt it to expand the forked portion of the mandrel when forced therein, as shown in Fig. 2. The mandrel 4 is provided at its lower reduced end with an annular flange or shoulder 9 to adapt it to more effectually engage the object to be withdrawn. The upper portion of the mandrel is threaded to adapt it to be engaged by a lowering-rod (not shown) I and also to receive the guiding member 10, which is made circular to conform to the shape of the pipe-casing and slightly smaller in diameter than the inner diameter of the casing 1. This guide is a most important feature in my invention, inasmuch as it directs the movement of the tool in its downward course in the pipe and causes its lower end to be guided through the aperture 3 of the valve 2, as otherwise the wedge or tongue 6 would be likely to strike against the casing ofthe valve and cause the lower end of the mandrel to be prematurely expanded, thus preventing its introduction into said aperture.

It will be apparent from the above description that in operation my improved fishingtool is lowered into the well until the end of the tongue 6 strikes the ball 3 or other object within the valve-casing, thereby causing said tongue to be forced upward and the bifurcated portion of said mandrel expanded to prevent its withdrawal from said aperture.

While I have shown and described my invention as used in connection with the removal of valves from oil-Wells, it should be understood that it may also be used for raising any article having a suitable aperture therein for receiving the reduced end of the mandrel.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a tool of the class described, an elongated member carrying a guide at its upper end and longitudinally slotted at its lower end, and an expanding member adapted to be forced within said slotted portion and expand the same, substantially as described.

2. A fishing-tool comprising a mandrel having its upper end provided with a guiding member and its lower end longitudinally slotted, and a tapered longitudinally movable tongue adapted to be forced within said slot and expand the lower portion of said mandrel, substantially as described.

3. A fishing-tool comprising a mandrel having its upper end threaded and its lower end slotted, a guiding member on said threaded portion, and an expanding member secured within said slot and adapted to have a limited longitudinal movement therein, substantially as described.

A fishing-tool comprising a mandrel having its upper end threaded and its lower end bifurcated and reduced in size, a guide on said threaded portion, and an elongated expanding member movably secured between the bifurcated parts of said mandrel and adapted to expand the same when forced therein, substantially as described.

5. A fishing-tool comprising an elongated member having its lower end bifurcated and reduced in size and its upper end provided with a guiding member, and a tongue movably secured between the bifurcated portions of said elongated member, said tongue normally extending below said member and having its lower end tapered to adapt it to expand said elongated member when forced therein, substantially as described.

6. In a fishing-tool, a mandrel, a reduced bifurcated portion on said mandrel provided with an annular flange, a longitudinally-movable member in engagement with and adapted to expand said bifurcated portion, and a guide on said mandrel, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ARTHUR H. BRANDON.

Witnesses:

CHAS. W. OWEN, CORNELL SCHREIBER. 

